Spooling-machine.



A. BELZ. SPOOLING MACHINE- APPLICATION man JUNE 9. 1914.

Patented June 1, 1915.

2 SHEETS-SHEET l- 3 l/fzzerwer THE NORRIS PETERS C0,. PHOTO LITHOQ WASHINGTON D. C

A. BELZ.

SPOOLING MACHINE. APPLICATION FILED JUNE 9, I914.

Patented Ju ne 1, 1915.

2 SHEETS-SHEET 2.

24 Z! iv 7 THE NORRIS PETER 5 CO.. FHDTO-LITHOH WASHINGTON, D. c.

a an s'rarns rare @FFIQFQ.

' ALBERT IB ELZ, OF UNTEB-GOLDACH, SWITZERLAND.

SPOOLING-MACHINE.

menace.

vention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to spooling-machines and particularly to a device for securing the free thread end of the bobbins used in shuttle embroidering-machines.'

In the hitherto proposed spooling-machines for winding up bobbins to be used in shuttle embroidering-machines'the devices serving for securing the free thread end are usually brought to act upon the bobbin as soon as a second bobbin to 'be produced has a predeterminate size. Now, it may occur that the spool mounted on the front end of the bobbin-shaft and whose thread end has to be secured is shifted in an axial direction. Such a shifting of the bobbin takes place, for instance, when the tension of the thread to be wound on the bobbin is not great enough, or when the shape of the bobbin is somewhat conical. The yarn is be wound up may also contain too much moisture, so that the bobbin cannot be so easily shifted on the bobbin-shaft. This causes frequently a stemming of said bobbin. so that a kind of collar is formed behind the central winding wound on the bobbin. These drawbacks are very much felt in spoofing-machines, since the member for securing the free thread end may act beside the central winding when a shifting of the bobbin has taken place, so that said member does not work in the proper manner or does not act at all If, on the other hand, the bobbin has been stemmed, the securing member may only come in contact with said collar formed behind the central winding of the bobbin and not with the central winding. In both instances the free thread end is either secured in an imperfect manner or it is not secured atall.

The object of this invention is to provide in a device for securing the free thread end for spoofing-machines 'a. member for secur- Specification of Letters Patent.

Patented June 1, 1915.

Application filed June 9, 1914. Serial No. 844,013.

ing said end, which guides the last outer windings of the thread wound around the central part of the bobbin underneath the central windings previously wound around said bobbin part.

One mode of carrying the invention into effect is shown by way of example in the accompanying drawings, in which:

Figure 1 is a side-view of the spoolingmachine, big. 2 is an end view of the machine seen from the left hand side of Fig.

1, Fig. 3 is a corresponding view seen from the right hand side of Fig. 1 and Figs. 47 show details on different scales.

In the construction according to this invention as shown in the drawings 1 denotes the driving shaft of a spooling-machine. The friction disks 2 transmit the motion of this shaft to the bobbin-shaft 5 mounted in the standard 4, which is adjustably mounted on the shafts 3. The standard 4 carries a roller 6 and it is acted upon by a spring 2*, which presses said disks 2 one against another.

7 denotes a clutch member having a camdisk shaped part. This member is fixed to a shaft 8 consisting of two halves touching one another at 11. One half of the shaft 8 is operativelv connected by means of wormgearing 9 to the shaft 1. A second clutch member 1 is capable of being adiusted in thelongitudinal direction. of said shaft 8,

but is prevented from rotating relatively to this shaft. A helical spring 12 acting upon the member 10 has a tendency to throw the members 7 and 10 in gear to couple the two halves of the shaft 8. A roller 14 of a lever 16 pivotally mounted on the base-plate 15 of the spooling-machine works in an annular groove 13 of the clutch member 10. To the lever 16 there is pivotally connected a rod 17. This rod 17 may abut against a lever 18, in which case the clutchmember 10 is thrown out of gear, the-spring 12 being then compressed. A support 19 of the standard 4 carries a frame 21, rotatably mounted on a shaft 20. In this frame 21 there is mounted a revolving drum 23 having a slot 22 and acting as a threadv guide. A tension spring 40 has a tendency is provided a roller 25, mounted in a stationary manner in the frame 21. The latter has also a downward projecting arm 26 carrying at its lower end a'pawl 27, which may engage the arm 18 to keepit in the position, in which the rod 17 lies behind the lever 18 (Fig. 2). bracket 28 (Fig. 4) to which there is fixed the plate 29 provided with a slot and acting as an auxiliary thread guide. A sleeve 30 is rotatably mounted on the bracket 28'and carries the member for securing the free thread end. This member consists of a wire 31' bent in the shape of a ring and having pointed ends.

32 denotes a spring, which has a tendency carries the clutch member 7. The disk 38 has a cam-shaped surface 39. The arm 26 projects into the path of movement of the arm 34.

While the bobbin is wound up the drum 23 is iii contactiwith the bobbin and the part of the shaft 8 carrying the disk38 remains stationary, the irod 17 abut-ting against the lever'l'S and the roller 37 engaging the cam-shaped part of the disk 38. The pawl 27 engaging the lever 18 keeps the latter in the proper position, while the auxiliary thread guide 29 and the wire 31 do not touch the thread, which has to be wound on the bobbin. After the bobbin to be produced has a certain diameter, the drum 23 has been moved so far away from the bobbin-shaft 5, that the pawl 27 releases the lever 18, so that the latter acted upon by a spring 4-1 will be rotated and release the rod'1 7. The spring 12 throws hereupon the clutch members 10 and 7 into gear.

This causes a rotation of the disk 38 and the roller 37 glides ofl the projection 39, the lever 34, 35 being then rotated. Thereby the arm 34: moves the arm 26 in such a manner, that the drum 23 is brought onto-f contact with the bobbin, while the auxiliary thread-guide 29 is moved into the path of movement of the thread. The latter nassesnow through the slot of the thread guide 29, the central windings being there-- by wound on the bobbin, while the ends of thewire 31 rest-on the bobbin. The conical ends of the wire til/guide the thread to be wound on the central part of the bobbin in such a way toward their points, that the outer central windings of. the thread come to lie underneath the windings wound previously on said part of the bobbin, so that after the bobbin-shaft -5 has been brought to a standstill the last winding of the thread 7 The arm 26 carries a' will lie underneath the other windings wound on thecentral part of the bobbin. Thus theend of the thread is entangled and secured. When the roller 6. engages the cam-disk shaped part of the clutch-member 7 the bobbin-shaft 5 is brought to a standstill, the support a being then" displaced in an axial direction and the friction, wheel 2 mounted on the bobbin shaft 5 being moved away from the friction wheel 2 mounted on the shaft 1, so that the transmission of the; drive'is interrupted. Then the wire 31- is V returned in its positionof rest, or when it is moved away. from the bobb1n, -the wire can move in a lateral direction owing to" its shape and resiliency, so that it maybe movedpast the centralwindings without the latter being damaged. After a bobbin has been finished and the hereinbefore described members have been brought back into their first position, the 'operatonmay start with thewind-ing upof anew bobbin.

The described device has the advantage, compared with the devices mentioned atthe beginning, that the member eflecting the securing of the thread end acts always at the right places. j Y,

What I do claim as my-invention is;

1. In a device for securing-the free thread end of bobbins. for spooling machines,'means to form a central winding. of the thread around the main cwindi brought into operation at the beginning of the thread being wound underthe; preving, and a member i i the central winding tocondu'ct a portion oil,

2. In a'device for securing the free'thread end of bobbins for spooling machines, means to wind the thread around the central portion of the mainwinding, and a resilient ring shaped member brought into contact with the bobbin after the main winding thereof is completed. said member having thread being wound under the previously wound portion of the central winding. 3. In a device forsecuring the free thread conical ends to 'COIldUCt a portion oflthe j end of bobbins for:: pooling nachines,- a. I V

movable bracket, an auxiliary thread guide carried by said bracket, armg-sh'apedwire having resilient and conical ends resting o n "the bobbin and lying between the bobbin and the cen-tralwindings wound onthe'bob-Q bin, said ring beingcapable of rotating in the bracket, means for" throwing said wire and auxiliary thread-guide out of operation while the bobbin ISfWOU-Ildllj) and means for moving said thread-guideinto the path of movement of the, threadza fter the winding up of the bobbin.

end of bobbins for spoofing-machines, a

pivotally mounted frame, a slotted drum v 4. In a device for securing the free thread an arm of said frame, an auxiliary threadgulde carrled by said bracket,a r1ng-shaped vvlre having resilient and conical ends resting on the bobbinand lying between the bobbin and the central windings to be Wound on the bobbin, said ring being capable of rotating in the bracket and means for swinging said arm of the frame to bring said auxiliary thread'guide and said Wire into the operative position. i

In a device for securing the free thread end of bobbins for spoofing-machines, a main driving shaft, a bobbin-shaft, means for transmitting the drive from the main shaft to the bobbin-shaft, an auxiliary shaft, means for transmitting the drive from the main shaft to the auxiliary shaft, a cam shaped disk fixed to said auxiliary shaft, a double-arm lever pivotally mounted on the machine-frame, one of said lever-arms Working together With said disk, a pivotally V mounted frame, a slotted drum acting as a thread-guide and supported by said frame,

a movable bracket, an arm on said frame carrying the bracket and Working together with the other arm of said lever, an auxiliary thread-guide carried by said bracket, a ring-shaped Wire having resilient and conical ends resting on the bobbin and lying between the bobbin and the central windings to be Wound on the bobbin, said ring being capable of rotating in the bracket and means for pivoting said lever as soon as the auxiliary shaft is rotated to bring the auxiliary thread-guide and said Wire into their operative position.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of tWo subscribing Witnesses.

- ALBERT BELZ. Witnesses:

CARL GUBLER, ARNOLD LEHNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissionerof Patents, Washington, D. C. 

